In the Dunkirk beach attack scene, the German planes attacking are clearly US made airplanes, North American T-6 Texan/Harvard, with a German paint job.
Germans had no aircraft with radial engines at the time of Operation Dynamo (may 1940), the only Radial Engine Fighter, the Focke Wulf FW190 only was introduced to the service in august1941.
Germans had no aircraft with radial engines at the time of Operation Dynamo (may 1940), the only Radial Engine Fighter, the Focke Wulf FW190 only was introduced to the service in august1941.
An establishing shot of London, purporting to be during the Battle of Britain (1940) at 27:38, shows Tower Bridge. Behind the Bridge on the left, the BT Tower is clearly visible. Construction of the Tower did not begin until 1961.
In the last few minutes bazookas are used. These are either Spainish or M20 American. The M1 or M9 series were all wood furniture and were not replaced till the wars end. War movies of the period (1965-1980ish) made major errors in weaponry.